The engagement theory of the gear rack mechanism can be used to study the silent chain mechanism.

通过对有内螺纹的塑件结构分析，确定采用齿轮齿条机构脱模的模具结构。

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The engagement theory of the gear rack mechanism can be used to study the silent chain mechanism.

通过对有内螺纹的塑件结构分析，确定采用齿轮齿条机构脱模的模具结构。

youdao